Four-wheeled truck for tramway-cars, railway-carriages, &amp;c.



PA'TENTED AUG. 25, 1903. v A. S. NELSON, A. STEWARTJz J. FOSTER. FOUR WHEELED TRUCK FOR TRAMWAY CARS, RAILWAY GARRIAGES, &0.

APPLIOATION FILED D110. 27, 1902.

2 SHEETS-SHEET 1.

N0 MODEL,

v No. 737,132. PATENTED AUG. 25, 1903. 1

v A. NELSON, A. STEWART & T. J. FOSTER. V FOURWHEELED TRUCK FOR TRAMWAY CARS, RAILWAY GABRIAGBS, &c. A

APPLICATION TILED DEC. 27, 1902.

2 SHEBTS-SHIJET 2.

HO MODEL.

wJ J 1 11] zt/wss s 1 L- 7 n4: mums PEYERS cu. mom-undo wumnm'on, n. c.

ANDREW s. NELSON,

Fatented August 25, i902;

PATENT OFFIcE.

ALBERT STEWART, AND THOMAS JOHNSON FOSTER,

or MOTHERWELL, SCOTLAND.

FOUR-WHEELED TRUCK FOR TRAMWAY-CARS, RAILWAY-CARRIAGES, &c.

SPECIFICATION forming part of Letters Patent No. 737,132, dated August 25, 1903.

Application filed December 27, 1902. Serial No. 136,835. (No model.)

To all whom it may concern:

Be it known that we, ANDREW SCLANDERS NELSON, ALBERT STEWART, and THOMAS JOHNSON FOSTER, subjects of the King of the United Kingdom of Great Britain and Ireland, all residing at the Glasgow Rolling Stock and Plant WVorks, Motherwell, in the county of Lanark, Scotland, have invented certain new and useful Improvements in Four- Wheeled Trucks for 'lramway-Cars, Railway-Carriages, and Like Vehicles, (for which application for patent has been made in Great Britain, NO. 13,909, dated June 19, 1902,) of which the following is a specification.

This invention relates to trucks for tramway-cars, railway-carriages, and like vehi cles, Where a portion of the weight of the body is carried upon Springs supported on the extended ends of the side bars; and the invention consists in the arrangement and combination of parts constituting the truck, and more especially in the provision of laminated springs of variable tension at the end of solid bars and of body horn-bars in conjunction with the usual truck-horn bars.

In the drawings, Figure l is an elevation, and Fig. 2 a plan, of an improved fourwheeled truck-frame constructed according to our invention. Fig. 3 is a side elevation of a part of the structure on a larger scale. Fig. at is a Sectional plan on line X X ofFig. 3. Fig. 5 is an edge view of the body horn-bar.

As shown in the drawings, the truck comprises solid side bars A, preferably of rolled angle steel or iron, to which Separate hornbars or pedestals B, of cast or pressed steel or iron, are connected, While to the truck top bars 0 are secured body. horn-bars D of mild steel or iron plates Suitably shaped for the purpose of preventing'pitching of the vehicle. Each of the'body-bars D may Work in the same slide orgroove as the truck horn-bars 13 or in an independent groove in the axle box E. To the bottom of the body horn-bars D, on each side of the vehicle, is attached a stretcher-bar F, preferably of iron 'or'steel tube with solid ends. The Stretcher-bars F may be in one or more pieces and may be used in conjunction with a strut extending between the leg of the horn-bar D and the body of "the vehicle, or it may also be used in combination with an adjustingscrew or screws for the purpose of acting as a bodytruss.

The end springs G are preferably of the laminated type, with solid or curled eyes H, and provided with ten'sional adj listing-screws J for the purpose of regulating the height and stiffness. fitted with nuts for the purpose of adjustment and pass through and are carried in suitable scroll-irons secured to the truck top bar 0.

Intermediate springs M, preferably of the conical spiral type, sitting in Spring-shoes N of pressed steel, are provided with adjustingbolts' 0, acting upon the truck top bar 0 and upon check-sprin gs P, placed underneath for the purpose of preventing galloping of the ve hicle. Diagonals Q, of suitable angle or other sectional steelor iron, are attached to the truck side bars A and to each other and are arranged to carry the motor Suspension-bars The tensional screws J are- R. Suitable cross-bars S are provided in the truck to answer the purpose of carrying the brake and also to tie the sides together. Pilotirons U are provided at'or near the ends of the side bars A for the purpose of carrying the pilot-board'U and w'hich'may be of the usual type. The brake-blocks V are preferably of the detachable type and are attached to the cross-bars S, fitted with application-levers X, Worked by means of rods and chains secured to the brake-shaft.

It will be understood that in p'racticemodifications of the Specific constructions Shown may be made and any suitable materials and proportions may be used for the various parts Without departing from the spirit of the invention. V

Having now described the. invention, what we claim, and desire to Secure by Letters Patent, is-

1. Theherein-described four-wheeled truck comprising in combination solid side bars, pedestals or truck horn-bars Secured. to said side bars truck top bars, body horn-barssecured to said top bars sliding in the same grooves as the pedestals, stretcher-bars connecting the body-horn-bars, end laminated springs connecting the Side bars to said top bars, means for adjusting the tension of said springs, intermediate helical springs, springshoes underneath the top bars upon which said intermediate springs bear, check-springs un erneath the side bars, bolts connecting said intermediate springs With-said checksprings, diagonals attached to the side bars and to each other, motor suspension-bars connected to said diagonals, cross-bars connecting said side bars and carrying the brakes, and pilot-bars at the ends of said bars substantially as and for the purpose set forth.

2. In a four-wheeled truck constructed as described the combination with solid side bars and truck top bars of pedestals or truck h0rnbars secured to the side bars, body horn-bars secured to the top bars, and sliding in the same groove as the pedestals, and compressionsprings interposed between the side bars and top bars as and for the purpose set forth.

In a four-wheeled truck constructed as described,the combination with solid side bars and truck top bars of truck horn-bars secured to the side bars, body horn-bars secured to the top bars and sliding in the same groove as said truck horn-bars, laminated end springs connecting said side bars and said truck top bars, means for adjusting said end springs, and intermediate compression-springs interposed between said side bars and said top bars for the purpose set forth.

In witness whereof we have hereun to set our hands in presence of two Witnesses.

ANDREW S. NELSON. ALBERT CTEVVART. THOMAS JOHNSON FOSTER.

Vitnesses:

ARTHUR BURNS, MARY CLARKE. 

